The White House, however, has refused to say, House Democrats said.
The White House did not immediately respond to request for comment.
"This kind of preparation is underway, and we do not exclude the possibility that this meeting could take place", he said.
Trump is scheduled to leave for Japan on June 27 to attend the two-day summit meeting of G-20 leaders in Osaka on June 28 and 29. "Instead the White House has disregarded these legitimate congressional inquiries and dissembled about basic facts".
The Washington Post reported in January that Trump, after a meeting with Putin in Hamburg in 2017, had gone to extraordinary lengths to hide details of that private conversation, taking possession of the notes of his own interpreter and instructing the linguist not to discuss what had transpired with other administration officials.
Earlier this month, Kremlin spokesman Dmitry Peskov said that Moscow was ready to organize a Putin-Trump meeting even on the eve of the G20 summit, but hadn't received any signals from the United States about the matter. These actions do not serve the interests of the American people, and they obstruct and frustrate the Committee's review, ' he wrote.
Russian President Vladimir Putin has amended his decree to allow transit transportation of Ukrainian goods by road and by rail via Russia only with seals on vehicles and goods, using the GLONASS (Global Navigation Satellite System) technology (a GPS analogue).
With respect to the Hamburg meeting, Cummings wants to know if Trump took the interpreter's notes, if the president did "alter or destroy" the notes, who has them, and whether the State Department has a copy. Trump had called and congratulated Modi over phone on his re-election.
When Trump saw McGahn taking notes in a meeting, he said: "Why do you take notes?"
He earlier said that he hoped the trilateral meeting could lay the groudwork for a broader dialogue.